CHANDLER, Ariz. — Hannah O’Sullivan dipped her toe in professional golf, and the next thing she knew she was being carried by a swift current away from college and toward the L.P.G.A.
The same white-knuckle course had deposited others like Cristie Kerr, Morgan Pressel, Paula Creamer, Lexi Thompson and Lydia Ko into the shallow pool of major winners. But as O’Sullivan hurtled toward a pro career, she did something considered radical in today’s carpe-diem sports culture. She abruptly changed courses, withdrawing from L.P.G.A. qualifying school last fall and renewing her commitment to attend college.